g Polaris, also called the North Star, is moving toward us. For a stationary source, the red hydrogen spectral line is at a wavelength of 656.279 nm. Due to the radial velocity of the star, the line is blue-shifted by 0.037 nm. At what wavelength will a scientist on Earth observe the shifted line

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station